It would be the one closest to the front.
I have a 149 cc engine on my lawnmower and it has ( 1 ) piston
A bent engine piston is a reference to the piston rod. The piston cannot be bent, but the piston rod can be bent.
1. Piston engine fighter planes.
Closest to serpentine belt.
Piston in an engine is in the first class of lever.
Cylinder #1 is always the piston closest to the front of the engine(on a transverse mounted engine the side with the belts is the front). If it is a "V" style engine then you will notice that One cylinder head sits closer to the front of the engine than the other. The front cylinder on that side will be number 1.
Passengers side front cylinder on engine is #1.Passengers side front cylinder on engine is #1.
piston is a plunger that moves ups and down in the engine block.the function of the piston is to compress air mixtures in the engine block
The front cylinder on the driver's side is #1.
piston
The engine had a bad piston
Many manufactures make a 2.2 engine. What make are you asking about?